ZnSe Window
ZnSe Windows are frequently used in optical systems to separate the environment in one part of the system from
another, such as to seal vacuum or high-pressure cells. Because the infrared transmitting material has a high index of
refraction, an anti-reflection coating is typically applied to windows to minimize losses due to reflections.


Material: Laser grade ZnSe
Diameter Tolerance: --------------------- +0.0, -0.1mm
Thickness Tolerance: -------------------- ±0.1mm
Clear Aperture: ---------------------------->85%
Parallelism: -----------------------------------3 arc minute
Surface Quality: ----------------------------60-40 scratch and dig
Wavefront Distortion: --------------------λ /4per 25mm @633mm
Bevel: -----------------------------------------Protective  (<0.2mm x 45° )
Coating: -------------------------------------- Optional (Uncoated, AR Coating, etc.)
Note for ZnSe Window:
(1)Custom-made ZnSe windows at any size are available.
Besides round, shape of quadrate, triangular, or other polygonal are available.
(2). Thickness from 1.0mm to 20.0 mm is available upon request.
(3). Better bevel is available upon request.

Ms. Lin

Mr. Wen